Grenade



E. G. MRNER Nov. 3o, 1937.

GRENADE Filed May 24, 1934 MEJLZOJ" im@ 601W@ Mame: ma@ in, Iii-0:41a?- Patented Nov. 30, 1937 UNITED STATES PATENT OFFICE GRENADE Eric Gran Mrner, Stockholm, Sweden Application May 24, 1934, Serial No. 727,331 In Sweden May 26, 1933 8 Claims. (Cl. 102-29) The present invention relates to grenades and grenade being divided into two bodies I and 2, more particularly to grenades adapted to be each containing an essential portion of the charge thrown by hand of the type adapted to be brought 3 and 4, respectively. By this means the main into action irrespective of the part of the grenade characterizing feature of the invention as far as 3 against which the impact occurs. the ignition is concerned is obtained, viz. that 5 The principal object of the invention is to propractically the whole weight ofthe grenade is invide a grenade of the type described comprising cluded in the members movable in relation to each two parts which in order to effect ignition are other so as to eliminate any masses inactive for movably connected in relation to each other, said the intended action of the grenade. The bodies 10 parts forming, after the grenade having been igmay be moved towards each other by a rocking 10 nited, the active masses thereof, irrespective of y movement and/or a displacement, this being posthe grenade being used for solid, liquid or gaseous Sible by the Casing 0f the body 2 by means 0f an charges, y inwardly directed ange or edge 34 engaging an A further object of the invention is to provide outwardly directed flange or edge 35 provided on a grenade of the type described, in which the the casing of the body l- By thiS IneanS the rOCk- 15 movable parts have essentially the same weight ing mOvelnent 01 displacement iS eieCted in a and are formed as cup-shaped bodies serving, very simplemanner irrespective of the direction wholly or in part, as containers for the charge. in which the impact 0CC11IS Evidently, the bodies A still further object of the invention is to i and 2 are Spaeed from each Other through' a go provide a grenade of the type described, in which distance great enough t0 render such a move- 20 the movement between the different parts takes ment possible. place as a rocking movement and/or displace- Provided in the bOdy l 1S a main-Spring 5 which ment of the parts in relation to each other, said in the embodiment shown is at its ends clamped movement being effected irrespective of the posi into a carrier 6 loosely or rigidly arranged in the.

tion in which the impact occurs. body I. A percussion pin 9 is secured to the 25 A still further object of the invention is to spring 5. In its stretched position as shown in provide a grenade of the type described compris- Figs. 1 and 4, the Spring may be actuated by a ing Certain coupling means and securing meang, preferably spherical elevation 0r Shoulder Il 0f especially a. securing rod adapted to be released the bedy 2 during the throw by means of a pair of wings When the position of the bodies I and 2 in re- 30 swung outwards by the air resistance in order to lation t0 each Other iS Changed either by a diS- prevent ignition at undesired time. Placement 0r. as shown in Fig. 2, by a rocking At lasty the invention is also characterized by movement 01' beth, the Shoulder II causes the certain means for the actuation of the percussion Spring 5 t0 move inte the DOStiOn ShOWn in Figs.

pin and for the insertion of the cartridge in the 2 and 5, resulting in the pin 9 being driven into 35 one or both parts of the grenade. the cartridge I8 causing the grenade to be brought The invention will be more fully described with into aCtiOnn reference to the accompanying drawing, other The main-Spring 5 may with its ends be secharacterizing features ofthe invention being ap- Cured t0 fiaDS l, fOided upwardly 0n the carparent according as the specification proceeds. rier t, and may be prevented from lateral dis- 40 In the drawingzplacement by flaps 8, folded inwardly at the edge Fig. 1 isa longitudinal sectional view of a handof said carrier. The carrier 6 is provided with grenade according to the invention. a central opening of circular or any other form Fig. 2 is a cross sectional view of the grenade. and having an inner edge 22, against which the ..45 Fig. 3 is a longitudinal sectional view of the spring 5 abuts in its stretched position. By vary- 45 grenade illustrating how one body may move in ing the size of the opening in the annular carrelation to the other and how one body may be rier 6 and the dimensions of the spring 5, it is divided into two parts. possible within wide limits to vary on the one Fig. 4 isla cross sectional view of a modification hand the pressure required to cause the spring of the grenade. 5 to move from its starting position into its end 50 Fig. 5 is a longitudinal sectional view of said position (shown by dotted lines in Fig. 1), onv modification. the other hand the size of the displacement of With reference to the embodiment shown in the point 0 of the spring 5 required to effect Figs. 1 and 2, the grenade itself forms the memsaid movement and at last the force by which bers actuating the igniting mechanism, the the impact `of the spring 5 takes place. 55

fac

Normally, tie bodies v| andy 2 are maintained in definite positioninr relation to each other by.

means of a securing rod ID passed through two diametricallyv opposed holes 65y in the casing of f the ybody and abutting against the flange 34 of the casing of the body 2, so as to'cause said 'rod alsoy 'to prevent displacement and/or rocking ya flange 38.r Mounted in the open end of the member 36 is a disk 39'hav'ing a cylindrical portion 66 f and e. rcentral portion 40 curved upwardly and provided with a ilange 4|. bearing on the member 36.

vrposition by the diameterv of the flange 43 of the y ofv the'ilange ringv 38. y

part l|2y beingy greater than that of thef openingy The part 36 isy provided with ay mangled vedge 44 and the sleeve 31 with ya corresponding impression 45.

vMounted above the upwardly curved portion y f 40 ofthe disk ySilis a sleeve45 supporting apercussion pin y41 and'provided onits cylindrical shell rwith holes v61 through which the` securing v f rod 52v may bey inserted. The sleeve 45 is adapted to engagea recess B8 providedl in the partv v42 so as to permit' the pin 51 to penetrate into,r

they cartridgey after the securing rod 52 having been removed.

press they sleeve against the shoulder 40.

, Theupper part 42 may be provided with a channel 48fhaving an upper extended portion 49, 40

in which a nut may be threaded to hold ther cartridge in position. The securingrod .52 asy well as the'securing rod I0 in Fig. 1, may hey displaced laterally and removed during the throw. For this purpose two sheet metal halves 53 are arranged around the part 42 and at the left side of the ngure rotatably connected by means of a pin 54 secured to outwardly folded ilaps 55 on each sheet metal half. Moreover, the securing rod 52 is rotatably mounted on a pin 55. On the otherjslde (right side of the ligure) the plates 53 are provided with folded portions 51 spaced from each other and connected with each other by means of a safetypinshaped member 58, to which is secured a ring 59 large enough to permit a rm grip of same.

In throwing the grenade, the securing rod must, of course, be capable oir` being removed so that, when the impact occurs, the pin 41 can penetrate into the cartridge 5|. When the grenade is to be thrown, the member 55 is removed by a. pull in the ring 59 causing the two halves 53 to be disconnected. During the throw, said halves will open as a pair of wings causing on account of the air resistance the securing rod 52 to be drawn out from the upper part 42 to such an extent that the pin 41 can penetrate into the cartridge. However, this operation requires such a long period of time that, if the grenade falls down too near the thrower, the securing rod will still prevent ignition. The arrangement of the securing rod as above described may be substantially the same, irrespective of a main-spring, as shown in Figs. 1 and 2, or a displaceable member 46 with percussion pin 41 being used. A member 5| corresponding to the disk 39 may pref- 'The' flange r38 'is so dimenysioned as to permit the upper portion 42o! the grenade (in thefpositlon shown) to bev inserted 'into the ilange ring 38 and to be maintained in A spring (not shown in' ther drawing) ymay 'be' provided in the recess 58 to erablybe arranged in the upper part 42, 'saidy position for instancefby r f member .being held iny means of an edge 10. y

As shown in Fig. 3, it may be conceived to .space the bodies and 2 from eachother. Ace r'c'ording'to thisr figure, the bodies 62,53 are con# nected by a part 64, which may contain an explosive charge or not and rwhich may be of vary-v f f ing' length, if desired, not longer than is required f for the relative movement.

The dimensions vof the grenade may vary, rbut it is preferred'tofadapt its parts iny suchy a manner that the two halves have substantially the same weight and are lled with explosive tothey rgreatest possible extent yso as to attain ygreatest have'diiferent diameters, 'but they may have substantially equalr diameters.y 'I'heymay have rcylindrical shapey or'forin partsv of a sphere or truncated cone,'bu't be conceived.' f

What I claim is:-'

also other embodiments may 1.y A'grenade of the type describedlcomprising f two'hollow rbodies containing the completer explosive charge and' each ends for uniting said ends in such a way that they may be rockable in all directions in relation to eachother, and an ignition device being in,- yfiuenc'erl 'byr the relativemovements of said hollow bodies in'order to explode the charge on impactr against any point of the surface of said bodies.

of themr being open at one end, anges'formed around each of said open f3, y

' 2. rA grenade'of the type described comprising f twovr hollow bodies containing yther complete, ex-

plosive charge and each hollow body having one end opened, ilan'gesv formed around each ofthe ends thereof in such a waytha't said bodies may be rockable in all directions in relation to each other, disks for retaining the charge in said bodies and an ignition device being influenced by the relative movements of said hollow bodies ln order to explode the charge on impact against any point of the surface of said bodies.

3. A grenade of the type described comprising two hollow bodies containing the complete explosive charge and each of them being open at one end, flanges formed around each of the opened ends of said bodies for uniting the latter in such a way that they may be rockable in all directions in relation to each other, an ignition device, disks for retaining the charge, and one of said disks being curved so as to form an elevation whereby the relative movement of the bodies causes the ignition device to explode the charge on impact against any point of the surface of said bodies.

4. A grenade of the type described comprising two hollow bodies containing the complete explosive charge and each of them being open at one end, Ilanges formed around each of said opened ends for uniting said bodies in such a way that they may be rockable in all directions in relation to each other, an ignition device comprising a resilient member under tension being inserted between the opened ends of said bodies and being released by the relative movements of said hollow bodies in order to explode the charge on impact against any point of the surface of said bodies.

5. A grenade of the type described comprising vopenr ends of' said bodies vfior yuniting the opened y two hollow bodies containing the complete explosive charge and each of them being open at one end, flanges formed around these ends for uniting the bodies in ,such a way that they may be rockable in all directions in relation to each other, an ignition device comprising a resilient member under tension being inserted between the opened ends of said bodies and being released by the relative movements of said hollow bodies in order to explode the charge on impact against any point of the surface of said bodies, and a carrier for said resilient member arranged in said hollow bodies.

6. A grenade of the type described comprising two hollow bodies eachcontaining a portion of the complete explosive charge and each of them being open at one end, intermediate flanges uniting said bodies whereby the latter may be rockable in all directions in relation to said flanges, and an ignition device being influenced by the relative movements of said hollow bodies in order to explode the charge on impact against any point of the surface of said bodies.

'7. A grenade of the type described comprising two hollow bodies each containing a portion oi the complete explosive charge, means universally connecting said hollow bodies, and an ignition device arranged to be influenced by the movements of said hollow bodies to eiect explosion ofthe charge on impact against any point of the surface of said bodies.

8. A grenade of the type described comprising two hollow bodies each containing a portion of the complete explosive charge, means universally and telescopically connecting said hollow bodies, and an ignition device arranged to be influenced by the movements of said hollow bodies to eiect explosion of the charge on impact against any point of the surface of said bodies.

ERIC GRAN MRNER. 

